I'm planning to power my PCB directly from a 5V and 12V bench power supply. The 5V rail will power 10+ ICs (various AND/OR logic gates, high speed comparators, and a uC). I'm estimating a max of a few hundred mAs of current draw to power everything on this rail. The 12V rail is solely for the drive high power supply of a MOSFET driver IC.
I have adequate decoupling capacitors as close as possible to each IC according to their datasheets, but given the main power is coming directly from a bench power supply, will I need any decoupling capacitors close to the power input connector?
I know when working with LDOs/switching regulators, it's necessary to have a combination of bulk capacitors and ceramic capacitors to decrease impedance over a wide frequency range and reduce output voltage ripple. Intuitively, I'd think it's necessary in my case as well since the power from the supply will travel through extra connectors/pins, which adds inductance. So far, I have a 22uF bulk cap and 47nF ceramic on the 5V rail as insurance. I'd love some guidance on how I can better design this in the future. Thanks!